C312312111133131212111133133313331333133312133313331333131323213221   >>    C31231211113313121211113313331333133313331213331333133313132321322   <<    C312312111133131212111133133313331333133312133313331333131323213223   >>      C312312111133131212111133133313331333133312133313331333131323213222   >>